Cisco Cisco Aironet 350 Wireless LAN Client Adapter 信息指南

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Q. What is meant by quiet mode?
A. This quiet mode forces the client adapter to become quiet (to passively scan or listen)
when the associated access point is turned off. The client generates radio frequency (RF)
energy only in direct response to an access point transmission. The quiet mode applies to
individual cards rather than profiles. Also, it can be set differently for different cards that
remain in effect across Aironet Client Utility sessions and computer reboots.
Q. How do I secure the data across the radio link of a client card?
A. Enable Wired Equivalent Privacy (WEP) to encrypt packets sent across a radio link. WEP
provides basic security to a radio link You can also enable Cisco Lightweight Extensible
Authentication Protocol (LEAP) to provide enhanced security. LEAP uses a AAA server,
such as RADIUS, to authenticate the client. Extensible Authentication Protocol (EAP)−FAST
is another authentication. EAP authentication mechanism is supported in the CB20A card, but
Macintosh OS does not support EAP−FAST.
Q. How many clients can associate to an access point?
A. An access point has the physical capacity to handle 2,048 MAC addresses. However,
because the access point is a shared medium and acts as a wireless hub, performance is
degraded as the number of users increases on an individual access point.
Q. Is Extensible Authentication Protocol (EAP)−FAST authentication
supported in CB20A Cards?
A. Yes, EAP−FAST is supported in CB20A Cards.
Q. Does Macintosh OS support Protected Extensible Authentication
Protocol (PEAP), Extensible Authentication Protocol (EAP)−FAST, and
Cisco Lightweight Extensible Authentication Protocol (LEAP)
authentication?
A. The three authentication types mentioned here are supported by the Cisco Macintosh
adapter with use of the Macintosh Airport Supplicant.
Q. I have a number of Macintosh clients in my Unified Wireless Network
(which includes WLCs and LAPs). The Macintosh clients experience
problems when they connect with Bonjour. How do I overcome this
issue?
A. Bonjour is a general method used to discover services on a local area network (LAN). This
technology is widely used with Mac OS X and allows users to set up a network without the
need to configure printers and file sharing servers (and so forth) on a LAN.
Bonjour uses broadcast, multicast, and multicast Domain Name System (mDNS) service
records in order to locate devices, such as printers, other computers, and the services that
those devices offer.
In order to correct this issue, use these commands to enable broadcast and multicast on your